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Extruded Heat Sinks
Extruded Heat Sinks
Same Sky's extruded heat sinks offer aluminum fin structures and greater surface area for increased heat dissipation in higher power applications. Our extruded heat sinks feature power dissipation ratings from 1.93 up to 16.7 W at 75°C and are measured under four conditions for thermal resistance. Made from aluminum with a black or blue anodized finish, our extruded heat sinks are compatible with TO-218, TO-220, and TO-247 transistor packages.
Package Cooled
Not Applicable
TO-218
TO-220
TO-247
Reset
Solder Pin Length (mm)
Min
Max
GO
2.3
2.6
2.65
2.95
3.5
3.96
4
4.1
4.5
Reset
Rth @ 75°C ΔT, nat conv (°C/W)
Min
Max
GO
4.49
4.85
4.97
5.21
5.47
5.66
5.77
5.86
6.15
6.25
6.41
6.64
6.94
7.13
7.5
7.58
7.65
7.81
7.98
8.06
8.15
8.24
8.43
8.71
9.15
9.18
9.26
9.38
9.62
9.74
10.14
10.27
10.71
10.87
11.19
11.47
11.53
11.54
11.72
12.1
12.5
12.71
12.93
13.16
13.64
14.42
15
15.96
16.83
16.91
18.83
19.75
20.27
21.44
24.19
30.38
31.22
38.45
38.75
38.9
Reset
Rth @ 1 W, nat conv (°C/W)
Min
Max
GO
5.2
5.5
6.61
7
7.36
7.6
7.62
7.9
7.99
8.05
8.34
8.51
8.52
8.63
8.71
8.94
9.37
9.81
9.93
10
10.49
10.51
10.52
10.9
10.92
10.96
11.01
11.06
11.15
11.17
11.54
11.67
12.28
12.29
12.33
12.5
12.6
12.98
13.03
13.19
13.31
13.52
13.6
13.64
13.97
14.35
14.4
15
15.42
15.97
16.12
16.16
16.65
17.13
17.29
18.58
19.57
20.6
20.99
21.9
22.39
22.6
24.3
26.1
34.4
35.3
41.2
41.6
42
Reset
Rth @ 1 W, 200 LFM (°C/W)
Min
Max
GO
2.1
2.24
2.29
2.31
2.38
2.45
2.5
2.57
2.63
2.67
2.7
2.78
2.85
2.88
2.9
2.91
2.98
3
3.09
3.26
3.28
3.32
3.44
3.5
3.52
3.53
3.62
3.63
3.64
3.66
3.73
3.79
3.86
3.94
4.03
4.05
4.28
4.3
4.33
4.35
4.38
4.39
4.42
4.44
4.46
4.49
4.76
4.85
4.93
5.17
5.77
6.12
6.7
6.84
6.9
7.07
7.2
7.74
8.36
16.3
16.6
19.2
20.9
21.4
Reset
Rth @ 1 W, 400 LFM (°C/W)
Min
Max
GO
1
1.11
1.22
1.55
1.66
1.7
1.79
1.8
1.82
1.86
1.9
1.91
2
2.07
2.09
2.12
2.13
2.14
2.2
2.21
2.25
2.31
2.43
2.44
2.48
2.49
2.5
2.52
2.56
2.57
2.6
2.7
2.76
2.8
2.82
2.84
2.86
2.88
2.89
2.97
3.17
3.21
3.27
3.28
3.3
3.31
3.4
3.44
3.68
4.13
4.2
4.5
5.05
5.18
5.77
5.79
6.41
10.8
10.9
13.8
14.8
15
Reset
PD @ 75°C ΔT, nat conv (W)
Min
Max
GO
1.93
1.94
1.95
2.4
2.47
3.1
3.5
3.7
3.8
3.98
4.43
4.46
4.7
5
5.2
5.5
5.7
5.8
5.9
6
6.2
6.4
6.5
6.54
6.7
6.9
7
7.3
7.4
7.7
7.8
8
8.1
8.17
8.2
8.61
8.9
9.1
9.2
9.3
9.4
9.6
9.8
9.9
10
10.53
10.8
11.29
11.7
12
12.2
12.79
12.8
13
13.26
13.7
14.4
15.1
15.46
16.7
Reset
Length (mm)
Min
Max
GO
12
17
25
25.4
27
31.75
31.8
35
38
38.1
50
50.8
63
63.5
70
Reset
Width (mm)
Min
Max
GO
12
16
16.3
16.5
19.4
25
29
30
31.9
32
34.5
34.9
34.92
35
41.6
42
45
50
Reset
Height (mm)
Min
Max
GO
4.5
6.5
11
12
12.5
12.7
14
16
16.3
25
25.4
28
32.5
45
Reset
Material
AL1050
AL6063-T5
Reset
Material Finish
Black Anodized
Blue Anodized
Reset
Series
HSE-18X
HSE-B18X-035H
HSE-B18X-060H-W
HSE-B20X
HSE-BX-01
HSE-BX-02
HSE-BX-035H
HSE-BX-035H-01
HSE-BX-035H-02
HSE-BX-040H
HSE-BX-045H
HSE-BX-04H
HSE-BX-04H-01
HSE-BX-056H
HSE02
HSE04
Reset
Solder Pin Orientation
No Pin
Vertical
Reset
Rth = Thermal Resistance, PD = Power Dissipation
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